I've seen a game Miku has a weak quality effact. It's custom bgm is 48000 frame rate mp3, if we fix 44100, the sound is a little bit nonsmooth comapring to 48000. But many others games really have good improvement especially such as mono audios, and lower freq audios. Thus, the effect is not always guaranteed to be good, so I think we could propose this hack for the moment.